Your body may be warning you already one month before a heart attack. You shouldn't ignore these signs!

Important to know!

Roughly three quarter of a million Americans suffer a heart attack every year, making it the leading cause of death in the United States.

But did you know that your body could be giving you warning signals well in advance of a heart attack? In fact, according to a study at Harvard University, only one in four heart attack sufferers experienced no warning signs. So awareness could be crucial in terms of both prevention and survival. If you experience any of the following, consult with a doctor as soon as possible.

If you are just occasionally tired, there is probably no cause for concern. This can happen to anyone who hasn't been getting enough sleep or who has been particularly active. But if you are truly fatigued to the point where even simple activities like doing the grocery shopping tire you out, or if you are out of breath from climbing a flight of stairs, this shouldn't be taken lightly. Fatigue can be caused when in situations of stress the heart is no longer receiving an adequate blood supply and this could be a sign of an impending myocardial infarction (also known as a heart attack).

Shortness of breath is a strong signal that your heart is not carrying enough oxygen to your lungs and this could be a sign of a blocked artery. If you're experiencing shortness of breath on a more than occasional basis under light or moderate exertion, this should set off the alarm bells.